Malicious PDF — malware analysis report

Heuristics 7

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ttraff.com/123?keyword=marvel+vs+capcom+3+free+download+for+pc+full+version In PDF document text

  • https://gogiwujuduk.weebly.com/uploads/1/3/4/3/134352159/2fd96.pdfIn PDF document text
  • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/4070445.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374196/normal_5f8b7027265f2.pdfIn PDF document text
  • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/ec797.pdfIn PDF document text
  • https://suragovitig.weebly.com/uploads/1/3/4/2/134265770/womulixetuxeru-kegavewa-buxugitadoru-rumugukozur.pdfIn PDF document text
  • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/dogugizuwa.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/a47a20f1-5ae5-4141-a102-8e147f2a5484/xelebewige.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8d239a96-4cdb-4903-9909-81873528ec0f/megufewuvupamejuk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ca7c29a-bd46-4bfa-bee7-8d2f421bcee5/gujisibobukamuxaxo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/8262/6710/files/simple_interest_word_problems_worksheet_doc.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/atmega328p_programming_in_c.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/372acbbc-5186-40f5-93ae-ed47baf199ca/officer_jessica_costa_el_paso.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f7286b4e-9c8e-46c7-84b9-e7d5817525e7/ginovobudugilubiwodotila.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec88c90f-6459-4ecf-a7fa-53329621af22/98365072176.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3f8b9ad6-3d5c-4c97-a1fb-711acfb979b4/30678949469.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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